I use it for 10 days, that is difficult to say what he brings but basically it allows interresting work on the stereo (via the dedicated virtual volume pot) but that is mostly its function of "vitalizer" that I find it excels. Used on some mixes, I have been able to account for its effect, the more we enter into more serious more subtle, the hardened mids, treble and midrange and highs are reborn outright. In short a very good plug to use smooth as it can quickly degrade a mix significantly. It is just my discovery 2010, I have ordered the tube vitalizer hardware version of the coup! +